Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13884 |
Mycorrhizal fungi enhance plant nutrient acquisition and modulate nitrogen loss with variable water regimes | |
Bowles, Timothy M.1; Jackson, Louise E.2; Cavagnaro, Timothy R.3 | |
2018 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:1页码:E171-E182 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Australia |
英文摘要 | Climate change will alter both the amount and pattern of precipitation and soil water availability, which will directly affect plant growth and nutrient acquisition, and potentially, ecosystem functions like nutrient cycling and losses as well. Given their role in facilitating plant nutrient acquisition and water stress resistance, arbuscular mycorrhizal (AM) fungi may modulate the effects of changing water availability on plants and ecosystem functions. The well-characterized mycorrhizal tomato (Solanum lycopersicum L.) genotype 76R (referred to as MYC+) and the mutant mycorrhiza-defective tomato genotype rmc were grown in microcosms in a glasshouse experiment manipulating both the pattern and amount of water supply in unsterilized field soil. Following 4 weeks of differing water regimes, we tested how AM fungi affected plant productivity and nutrient acquisition, short-term interception of a (NH4+)-N-15 pulse, and inorganic nitrogen (N) leaching from microcosms. AM fungi enhanced plant nutrient acquisition with both lower and more variable water availability, for instance increasing plant P uptake more with a pulsed water supply compared to a regular supply and increasing shoot N concentration more when lower water amounts were applied. Although uptake of the short-term (NH4+)-N-15 pulse was higher in rmc plants, possibly due to higher N demand, AM fungi subtly modulated NO3- leaching, decreasing losses by 54% at low and high water levels in the regular water regime, with small absolute amounts of NO3- leached (<1 kg N/ha). Since this study shows that AM fungi will likely be an important moderator of plant and ecosystem responses to adverse effects of more variable precipitation, management strategies that bolster AM fungal communities may in turn create systems that are more resilient to these changes. |
英文关键词 | arbuscular mycorrhizal fungi climate change drought nitrogen leaching nutrient uptake |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426506100014 |
WOS关键词 | ARBUSCULAR MYCORRHIZAS ; DEFECTIVE MUTANT ; EXTERNAL HYPHAE ; SOIL CARBON ; RESPONSES ; TOMATO ; COLONIZATION ; PHOSPHORUS ; AVAILABILITY ; DROUGHT |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/16846 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA; 2.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA; 3.Univ Adelaide, Waite Res Inst, Sch Agr Food & Wine, Adelaide, SA, Australia |
推荐引用方式 GB/T 7714 | Bowles, Timothy M.,Jackson, Louise E.,Cavagnaro, Timothy R.. Mycorrhizal fungi enhance plant nutrient acquisition and modulate nitrogen loss with variable water regimes[J]. GLOBAL CHANGE BIOLOGY,2018,24(1):E171-E182. |
APA | Bowles, Timothy M.,Jackson, Louise E.,&Cavagnaro, Timothy R..(2018).Mycorrhizal fungi enhance plant nutrient acquisition and modulate nitrogen loss with variable water regimes.GLOBAL CHANGE BIOLOGY,24(1),E171-E182. |
MLA | Bowles, Timothy M.,et al."Mycorrhizal fungi enhance plant nutrient acquisition and modulate nitrogen loss with variable water regimes".GLOBAL CHANGE BIOLOGY 24.1(2018):E171-E182. |
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